Also that holds some kind of religion from the virtue of yantra as well as mantras connected to it. You should also remember that the Yantra is just not a Instrument that is intended for the maniping or hurting of many people. Lord Shiva exposed the mantra to Mata Parvati, https://lukasiijjh.p2blogs.com/34592362/the-smart-trick-of-kali-that-nobody-is-discussing